Does anyone know how the boundaries for Time Zones in the US are/were determined? In some places it looks like state lines are followed somewhat and other places the line seems to jog out of the way to purposely include or exclude some small portion of a state. It looks like someone went out of the way to include 5% of Indiana in a different time zone.
Anybody know? Do mountain ranges play a role in determining where the lines go in the North central and western states?
Bill
